Nasdaq 100 e-minis were up 9.5 points, or 0.17 percent, on volume of 20,047 contracts.

Of the 181 S&P 500 companies that have released results so far, nearly 77 percent have reported earnings above analysts’ expectations. In a typical quarter, about 64 percent of companies have topped earnings estimates, according to Thomson Reuters I/B/E/S.

Among stocks, Under Armour jumped 7.3 percent after the sportswear maker posted a smaller-than-expected quarterly loss.

Bristol-Myers was up 3.4 percent after the drugmaker reported better-than-expected first-quarter earnings and a jump in revenue.